This is going to be the ultimate plan. Currently workshops in Vic are wondering whether or not NISTune can be applied to the NA ECU and keep the wiring like that. I'm not optimistic, but given the fact MV are out of the country for a month, I guess I'll wait and see how that goes as I can't get it shipped there anyway. I did suggest the "Just wire it up and pretend it's a GTT gearbox and use the GTT Gearbox, GTT ECU, GTT Wiring and it should be OK" but coming from Mr Laymans terms, I don't really think anyone wants to listen to me, and tbh when you have an uninitiated customer telling experienced mechanics what to do, I guess its understandable. If they get it working their way, I quite frankly don't give two shits how.
I do agree, but I was told this should work, and got a shift kit installed, paid for, and had the trans shipped to and back to a different state under that impression that it'd work fine. I just don't feel like dropping 3-4K on a manual conversion when I really shouldn't need to from a customer point of view. I've bought another car in the interim as a daily to replace this daily (lol) so I'm not entirely crippled.
I guess word of warning if you want to do something like this in Victoria, is don't unless you can do it yourself.